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1
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/***
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2
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**
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3
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** Polyfill for older browsers that don't yet have the newer string "includes()" method implemented.
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4
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** Source: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes?#Polyfill
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5
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** Documentation: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes
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6
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**
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|
7
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***/
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|
8
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9
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if (!String.prototype.includes) {
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10
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String.prototype.includes = function(search, start) {
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11
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'use strict';
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12
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if (typeof start !== 'number') {
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13
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start = 0;
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14
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}
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15
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16
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if (start + search.length > this.length) {
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17
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return false;
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18
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} else {
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19
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return this.indexOf(search, start) !== -1;
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20
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}
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21
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};
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22
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}
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23
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24
|
/***
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|
25
|
**
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|
26
|
** Polyfill for older browsers that don't yet have the newer string "startsWith()" method implemented.
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|
27
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** Source: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith#Polyfill
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28
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** Documentation: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith
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|
29
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**
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|
30
|
***/
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|
31
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|
32
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if (!String.prototype.startsWith) {
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33
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String.prototype.startsWith = function(searchString, position){
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34
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position = position || 0;
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|
35
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return this.substr(position, searchString.length) === searchString;
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|
36
|
};
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|
37
|
}
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